The following procedure can be used to clear the internal memory and reload the factory settings:
(CAUTION: All USER information will be lost. Be sure to back up any information you wish to keep.)
- Press DISK/UTILITY.
- Press #4 on the 10-key pad to select SOUND.
- Press #5 on the 10-key pad to select PRESET.
- Press ENTER, then use the VALUE DIAL to select Memory Protect OFF.
- Press ENTER twice. The display should say COMPLETE.
Owner's Manual can be downloaded here: https://www.roland.com/global/products/xp-50/support/